Genetic Variant DNAAF5:p.Leu328Met (chr7-741423-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_017802.4(DNAAF5):c.982C>A(p.Leu328Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000191 in 1,571,628 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L328L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

DNAAF5
NM_017802.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.80

Publications

0 publications found

Variant links:

Genes affected

DNAAF5 (HGNC:26013): (dynein axonemal assembly factor 5) The protein encoded by this gene is essential for the preassembly or stability of axonemal dynein arms, and is found only in organisms with motile cilia and flagella. Mutations in this gene are associated with primary ciliary dyskinesia-18, a disorder characterized by abnormalities of motile cilia. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Feb 2013]

DNAAF5 Gene-Disease associations (from GenCC):

primary ciliary dyskinesia 18
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Ambry Genetics
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

DNAAF5 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0661661).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017802.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAAF5	NM_017802.4	MANE Select	c.982C>A	p.Leu328Met	missense	Exon 4 of 13	NP_060272.3
	DNAAF5	NR_075098.2		n.942C>A		non_coding_transcript_exon	Exon 4 of 13

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DNAAF5	ENST00000297440.11	TSL:1 MANE Select	c.982C>A	p.Leu328Met	missense	Exon 4 of 13	ENSP00000297440.6	Q86Y56-1
DNAAF5	ENST00000852634.1		c.1063C>A	p.Leu355Met	missense	Exon 5 of 14	ENSP00000522693.1
DNAAF5	ENST00000852633.1		c.982C>A	p.Leu328Met	missense	Exon 4 of 13	ENSP00000522692.1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152262

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

183488

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.05e-7

AC:

AN:

1419366

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

701642

show subpopulations

African (AFR)

AF:

0.0000303

AC:

AN:

32998

American (AMR)

AF:

0.00

AC:

AN:

37444

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25230

East Asian (EAS)

AF:

0.00

AC:

AN:

38270

South Asian (SAS)

AF:

0.00

AC:

AN:

80566

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4760

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1090658

Other (OTH)

AF:

0.00

AC:

AN:

58830

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152262

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74394

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41474

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68042

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.088

BayesDel_noAF

Benign

-0.36

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.028

Eigen

Benign

0.16

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.75

M_CAP

Benign

0.032

MetaRNN

Benign

0.066

MetaSVM

Benign

-0.74

PhyloP100

2.8

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-0.31

REVEL

Benign

0.080

Sift

Benign

0.71

Sift4G

Benign

0.34

Polyphen

0.53

Vest4

0.22

MutPred

0.16

Gain of methylation at K325 (P = 0.086)

MVP

0.21

MPC

0.35

ClinPred

0.70

GERP RS

4.9

Varity_R

0.13

gMVP

0.39

Mutation Taster

=81/19

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over